Boulder 866 Integrated Amplifier & DAC

The analog+digital version of the 866 will have the following features:

• 200W continuous per channel into 8 ohms • 600W peak power

• 3 pairs of balanced analog inputs

• 1 x Toslink digital optical input

• 1 x AES3 balanced digital input

• Apple AirPlay 2 wireless digital streaming

• USB digital input

• RJ-45 Ethernet port for network streaming and Internet media subscription services

• Built-in UPnP server software • Bluetooth

• Roon endpoint capability

• Boulder’s own stepped attenuator volume control

• Front panel touch screen to select inputs, change volume, etc.

• Custom user-loadable photo images for each input

• A downloadable app to control all aspects of the 866, including inputs, volume, options, and setup menus. This app will also expand in the future to control other products in Boulder’s lineup, including multi-room control and all digital products and preamplifiers.

• Front panel buttons and control of Standby, Mute, Volume Up, and Volume Down

• Ethernet connectivity for software updates and 3rd party control

• Full IP control for use in integrated settings or smart homes

Specifications

INPUTS

3 pairs balanced analog via 3-pin XLR

DIGITAL INPUTS

Ethernet, USB x 4, AES3 (adaptable to S/PDIF), Toslink (optical), WiFi

OUTPUTS

0.25" (6 mm) binding posts

CONTINUOUS POWER, 8 OHMS

200W

PEAK POWER, 8 OHMS

250W

CONTINUOUS POWER, 4 OHMS

400W

PEAK POWER, 4 OHMS

400W

PEAK POWER, 2 OHMS

700W

DISTORTION, THD

0.01%

EQUIVALENT INPUT NOISE (EIN), 20 KHZ

2 μV

INPUT IMPEDANCE

100k ohms, balanced

MAXIMUM ANALOG GAIN

40.4 dB

FREQUENCY RESPONSE, 20-20 KHZ

0.00, -0.04 dB

FREQUENCY RESPONSE, -3 DB

0.015 Hz, 150 kHz

POWER REQUIREMENTS

100V, 120V, 240V, 50-60 Hz

POWER CONSUMPTION

1000W maximum

DIMENSIONS

17" W x 15.4 D x 7.25" H
(44 cm W x 39 cm D x 19 cm H)

WEIGHT

54 lbs.
(24.5 kg)

SHIPPING DIMENSIONS

24" W x 23" D x 14" H
(61 cm H x 59 cm D x 36 cm H)

SHIPPING WEIGHT

64 lbs.
(29 kg)